In general, a rail is placed in north-south position by default unless other rails are adjacent. Thus, one would suppose that these passageways are simply in the east-west direction, and the rails are placed in the north-south direction. I think this is WAI, unless you can demonstrate that this was not the case previously.
In general, a rail is placed in north-south position by default unless other rails are adjacent. Thus, one would suppose that these passageways are simply in the east-west direction, and the rails are placed in the north-south direction. I think this is WAI, unless you can demonstrate that this was not the case previously.